Fluctuations in weight have been linked to cardiovascular (CV) outcomes in the general population. "We evaluated whether weight fluctuation was independently predictive of CV events in patients with rheumatoid arthritis (RA)", describes Joshua F Baker from the Philadelphia VA Medical Center, Philadelphia, PA, USA.
Baker and colleagues studied a total of 31,381 participants, all of whom had Rheumatoid Arthritis. The data was collected from the Corrona registry. Weight change was categorized as a loss of ≥10%, loss of 5-10%, stable, gain of 5-10%, and gain of ≥10%. The authors further categorized patients by quintile of variability in weight in prior observation periods. Cox proportional hazard models explored independent associations between time-varying weight change and weight variability and risk of CV events before and after adjusting for CV risk factors, RA disease features, and disability.
Out of the total sample size, the investigators observed that those patients who lost or gained 10% of their weight had greater disease activity, worse physical function, and were more likely to smoke, have diabetes, use corticosteroids and be disabled.
Based on the study, the authors noted the following key findings-
- A greater risk of CV events was observed in those that experienced 10% weight loss [HR: 1.18 (1.03,1.36) p=0.02] or weight gain [HR 1.20 (1.04,1.38) p=0.01].
- The association between weight change and CV events was stronger among participants with BMI <25 kg/m2 for 10% weight loss [HR: 1.34 (1.08,1.66) p=0.001] and 10% weight gain [1.74 (1.41,2.24) p<0.001].
- Patients with greater variability in weight had a higher risk of CV events.
Therefore, the authors concluded by saying that "Recent changes and high variability in weight predict CV events in RA, particularly among thin patients. Further study is necessary to determine if weight fluctuation has adverse cardiometabolic consequences that are independent of other risk factors."
For further reference log on to:
Baker JF, et al. Arthritis Care Res. 2020;doi:10.1002/acr.24469
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